Suki na Ko ni Kokuttara, Futago no Imouto ga Omake de Tsuitekitta
好きな子に告ったら、双子の妹がオマケでついてきた
Nakaba Masaki unexpectedly declares his affection for Yuzuki Tsubasa, a classmate who is alone with him in the classroom after school on a summer day. Expecting to be turned down, he is surprised when she accepts his confession under one condition: he must also agree to date her twin sister.
